Crossing Chelsea bridge this morning, in front of me at the traffic lights was a grey haired chap cycling an 8 Freight. I followed him almost to Sloane Square, but had to turn off before I had a chance to say anything to him.
Actually, I don't know that it was definitely an 8 Freight, but I could clearly see the rear mono-stay, and I managed to see that the front wheel was similarly mono forked, and I'm unaware of any similar cargo bike with mono-stays, so I'm guessing it was an 8 Freight.